Keri Hilson worked up a sweat while lending her support to Michelle Obama’s Let’s Move! campaign. Wearing a pink Nike hat, sneakers, and T-shirt that read, “Pretty Girls Sweat,” the blonde bombshell exercised with the young women at the Educational Alliance’s Sirovich Senior Center in New York on Saturday, teaching them some moves as they got in shape. The First Lady also called on Beyoncé to re-record her hit “Get Me Bodied” for the initiative, aimed at fighting childhood obesity.